Summary: At home I have the 3510 and I purchased it as I was not interested in having to buy black ink plus 4 different cartridges for color. The color for this printer and mine is one cartridge that handles it all at a very decent price. The usual cost away from Ebay runs about $80 to $110. Does nice color results. Only thing is it does not hold a large amount of paper. For our office use and common home use, not a problem.